1. The impact of cell-of-origin, MYC/Bcl-2 dual expression and MYC rearrangement on disease relapse among early stage diffuse large B-cell lymphoma patients treated with combined modality therapy.
- Author
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Augustyn A, Medeiros LJ, Ludmir EB, Gunther J, Fang P, Li S, Ok CY, Bankston ME, Verma V, Pasalic D, Ahmed S, Nastoupil LJ, Westin JR, Strati P, Neelapu SS, Nair R, Steiner RE, Iyer SP, Rodriguez A, Fayad LE, Flowers CR, Dabaja BS, and Pinnix CC
- Subjects
- Antineoplastic Combined Chemotherapy Protocols therapeutic use, Combined Modality Therapy, Cyclophosphamide therapeutic use, Doxorubicin therapeutic use, Humans, Neoplasm Recurrence, Local genetics, Prognosis, Proto-Oncogene Proteins c-bcl-2 genetics, Proto-Oncogene Proteins c-bcl-6 genetics, Lymphoma, Large B-Cell, Diffuse drug therapy, Lymphoma, Large B-Cell, Diffuse therapy, Proto-Oncogene Proteins c-myc genetics
- Abstract
We addressed the prognostic impact of cell-of-origin (COO), MYC and Bcl-2 overexpression as well as isolated MYC rearrangement among 111 patients with limited stage diffuse large B-cell lymphoma (DLBCL) treated with consolidative radiation therapy (RT) after a metabolic complete response to immunochemotherapy. With a median follow-up of 31.1 months (95% CI 27.4 - 34.8), 4 relapses occurred. The 3-year progression free survival (PFS), overall survival (OS), and loco-regional relapse free survival (LRFS) for the cohort were 95%, 96%, and 100%, respectively. There were no differences in OS, PFS, or LRFS based on COO or MYC/Bcl-2 dual expression (DE). Similarly, patients with MYC translocations without BCL2 or BCL6 rearrangements did not have worse outcomes. Consolidative RT produced excellent local control, regardless of DLBCL biology, with one late in-field failure.
- Published
- 2021
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